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  • "Never do in code what you can get the SQL server to do well for you" - Is this a recipe for a bad design?

    - by PhonicUK
    It's an idea I've heard repeated in a handful of places. Some more or less acknowledging that once trying to solve a problem purely in SQL exceeds a certain level of complexity you should indeed be handling it in code. The logic behind the idea is that for the large majority of cases, the database engine will do a better job at finding the most efficient way of completing your task than you could in code. Especially when it comes to things like making the results conditional on operations performed on the data. Arguably with modern engines effectively JIT'ing + caching the compiled version of your query it'd make sense on the surface. The question is whether or not leveraging your database engine in this way is inherently bad design practice (and why). The lines become blurred further when all the logic exists inside the database and you're just hitting it via an ORM.

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  • Is it a bad practice to quit a company only to begin as a consultant? [closed]

    - by niwi
    Like the title says; is it a bad practice to quit a company after a few years, only to begin as a consultant for the same 'customer'? I've been lucky enough to come in to a company in the oil business from the beginning, developing software for relatively new and unused technology. Long before I even got this job, I've wanted to start my own consulting firm. Is it morally wrong of me to quit my job after a few years, only to hire myself out as a 'specialist' or consultant on our systems?

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  • Do Distributed Version Control Systems promote poor backup habits?

    - by John
    In a DVCS, each developer has an entire repository on their workstation, to which they can commit all their changes. Then they can merge their repo with someone else's, or clone it, or whatever (as I understand it, I'm not a DVCS user). To me that flags a side-effect, of being more vulnerable to forgetting to backup. In a traditional centralised system, both you as a developer and the people in charge know that if you commit something, it's held on a central server which can have decent backup solutions in place. But using a DVCS, it seems you only have to push your work to a server when you feel like sharing it. It's all very well you have the repo locally so you can work on your feature branch for a month without bothering anyone, but it means (I think) that checking in your code to the repo is not enough, you have to remember to do regular pushes to a backed-up server. It also means, doesn't it, that a team lead can't see all those nice SVN commit emails to keep a rough idea what's going on in the code-base? Is any of this a real issue?

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  • Domain name similar to an other existing one, bad for SEO?

    - by qqfr2507
    I am in the process of choosing a domain name for a personal project. I have found a very good one (let's say it is "myproject.com") but it is very close to another existing domain name ("smyproject.com"). Only the first letter is different. This website has a very different activity from mine. My question is: is it bad for SEO? When someone will type "myproject" in a search engine, is there a risk that the first result will be "smyproject.com" if this website has better SEO than mine? Thanks for your help!

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  • Ubuntu 12.04 Hp G72 Problem Installing proprietary wireless driver

    - by user69402
    I have a fresh Ubuntu 12.04 installed on HP G72 machine. In order for my wireless to work I need the proprietary driver installed - Broadcom STA wireless driver. Trying to install it from the System Settings gives me the error: "Sorry, installation of this driver failed. Please have a look at the log file for details: /var/log/jockey.log". So far I suspect the error to be caused by the bad "bcmwl-kernel-source" installation. What i tried: 1. remove "bcmwl-kernel-source" 2. install "bcmwl-kernel-source" installation through the terminal ends with "error code (1)". I would greatly appreciate any help Here is everything that the terminal returns: Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: bcmwl-kernel-source 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B/1,151 kB of archives. After this operation, 3,514 kB of additional disk space will be used. Selecting previously unselected package bcmwl-kernel-source. (Reading database ... 170331 files and directories currently installed.) Unpacking bcmwl-kernel-source (from .../bcmwl-kernel-source_5.100.82.38+bdcom-0ubuntu6.1_amd64.deb) ... Setting up bcmwl-kernel-source (5.100.82.38+bdcom-0ubuntu6.1) ... Loading new bcmwl-5.100.82.38+bdcom DKMS files... /usr/sbin/dkms: line 467: unset: POST_REMOVE$PRE_BUMLD': not a valid identifier /usr/sbin/dkms: line 467: unset:BUILD_E\CLUWIVE_ARCH': not a valid identifier /usr/sbin/dkms: line 467: unset: $': not a valid identifier /usr/sbin/dkms: line 467: unset:$': not a valid identifier /usr/sbin/dkms: line 467: unset: modules_conf_arra}': not a valid identifier /usr/sbin/dkms: line 467: unset:$': not a valid identifier /usr/sbin/dkms: line 467: unset: $': not a valid identifier /usr/sbin/dkms: line 467: unset:$': not a valid identifier /usr/sbin/dkms: line 467: unset: $': not a valid identifier /usr/sbin/dkms: line 467: unset:$': not a valid identifier /usr/sbin/dkms: line 467: unset: `$': not a valid identifier /usr/sbin/dkms: line 419: ${!POST_REMOVE$PRE_BUMLD[@]}: bad substitution /usr/sbin/dkms: line 419: ${!BUILD_E\CLUWIVE_ARCH[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution malloc: ../bash/subst.c:3671: assertion botched free: start and end chunk sizes differ Aborting.../tmp/tmp.pEXTnftUfI: line 4: modules_conf_arra}[[@]}]=[[@]}]}: command not found dkms.conf: Error! No 'DEST_MODULE_LOCATION' directive specified for record #0. dkms.conf: Error! Directive 'DEST_MODULE_LOCATION' does not begin with '/kernel', '/updates', or '/extra' in record #0. dkms.conf: Error! No 'PACKAGE_VERSION' directive specified. Error! Bad conf file. File: /usr/src/bcmwl-5.100.82.38+bdcom/dkms.conf does not represent a valid dkms.conf file. dpkg: error processing bcmwl-kernel-source (--configure): subprocess installed post-installation script returned error exit status 8 Errors were encountered while processing: bcmwl-kernel-source E: Sub-process /usr/bin/dpkg returned an error code (1)

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  • I have only two languages on my resume - how bad is this?

    - by Karl
    Hi there! I have a question that can be best answered here, given the vast experience some of you guys have! I am going to finish my bachelor's degree in CS and let's face it, I am just comfortable with C++ and Python. C++ - I have no experience to show for and I can't quote the C++ standard like some of the guys on SO do but yet I am comfortable with the language basics and the stuff that mostly matters. With Python, I have demonstrated work experience with a good company, so I can safely put that. I have never touched C, though I have been meaning to do it now. So I cannot write C on my resume because I have not done it ever. Sure I can finish K & R and get a sense of the language in a month, but I don't feel like writing it cause that would be being unfaithful to myself. So the big question is, are two languages on a a resume considered OK or that is usually a bad sign? Most resumes I have seen mention lots of languages and hence my question. Under the language section of my resume, I just mention: C++ and Python and that kinda looks empty! What are your views on this and what do you feel about such a situation? PS: I really don't want to write every single library or API I am familiar with. Or should I?

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  • My software is hosted on a "bad" website. Can I do anything about it?

    - by Abluescarab
    The software I've created is hosted on what you could call a "bad" website. It's hard to explain, so I'll just provide an example. I've made a free password generator. This, along with most of my other FREE software, is available on this website. This is their description of my software: Platform: 7/7 x64/Windows 2K/XP/2003/Vista Size: 61.6 Mb License: Trial File Type: .7z Last Updated: June 4th, 2011, 15:38 UTC Avarage Download Speed: 6226 Kb/s Last Week Downloads: 476 Toatal Downloads: 24908 Not only is the size completely skewed, it is not trial software, it's free software. The thing is that it's not the description I'm worried about--it's the download links. The website is a scam website. They apparently link to "cracks" and "keygens", but not only is that in itself illegal, they actually link to fake download websites that give you viruses and charge your credit card. Just to list things that are wrong with this website: they claim all software is paid software then offer downloads for keygens and cracks; they fake all details about the program and any program reviews and ratings; they and the downloads site they link to are probably run by the same person, so they make money off of these lies. I'm only a teenager with no means to pursue legal action. This means that, unfortunately, I can't do anything that will actually get results. I'd like my software to only be downloaded off my personal website. I have links to four legitimate locations to download my software and that's it. Essentially, is there anything I can do about this? As I said above, I can't pursue legal action, but is there some way I can discourage traffic to that website by blacklisting it or something? Can I make a claim on MY website to only download my software from the links I provide? Or should I just pay no mind? Because, honestly, it's a bit of a ways back in Google results. Thank you ahead of time.

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  • What are the risks of installing a "bad quality" package?

    - by ændrük
    When I try to install sonic-visualiser_1.9cc-1_amd64.deb via the Software Center the following warning message is displayed: The package is of bad quality The installation of a package which violates the quality standards isn't allowed. This could cause serious problems on your computer. Please contact the person or organisation who provided this package file and include the details beneath. Lintian check results for /home/ak/Downloads/sonic-visualiser_1.9cc-1_amd64.deb: Use of uninitialized value $ENV{"HOME"} in concatenation (.) or string at /usr/bin/lintian line 108. E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/bin/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/bin/sonic-visualiser 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/applications/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/applications/sonic-visualiser.desktop 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/doc/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/doc/sonic-visualiser/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/doc/sonic-visualiser/CHANGELOG 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/doc/sonic-visualiser/COPYING 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/doc/sonic-visualiser/README 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/mimelnk/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/mimelnk/application/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/mimelnk/application/x-sonicvisualiser-layer.desktop 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/mimelnk/application/x-sonicvisualiser.desktop 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/pixmaps/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/pixmaps/sv-icon-light.svg 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/pixmaps/sv-icon.svg 1000/1000 I understand that this means the package doesn't meet Debian policy and I know how to override the warning and install the package anyway. What are the risks of doing so?

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  • Generating Deep Arrays: Shallow to Deep, Deep to Shallow or Bad idea?

    - by MobyD
    I'm working on an array structure that will be used as the data source for a report template in a web app. The data comes from relatively complex SQL queries that return one or many rows as one dimensional associative arrays. In the case of many, they are turned into two dimensional indexed array. The data is complex and in some cases there is a lot of it. To save trips to the database (which are extremely expensive in this scenario) I'm attempting to get all of the basic arrays (1 and 2 dimension raw database data) and put them, conditionally, into a single, five level deep array. Organizing the data in PHP seems like a better idea than by using where statements in the SQL. Array Structure Array of years( year => array of types( types => array of information( total => value, table => array of data( index => db array ) ) ) ) My first question is, is this a bad idea. Are arrays like this appropriate for this situation? If this would work, how should I go about populating it? My initial thought was shallow to deep, but the more I work on this, the more I realize that it'd be very difficult to abstract out the conditionals that determine where each item goes in the array. So it seems that starting from the most deeply nested data may be the approach I should take. If this is array abuse, what alternatives exist?

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  • When creating an library published on CodePlex, how "bad" would it be for the unit-test projects to rely on commercial products?

    - by Lasse V. Karlsen
    I have started a project on CodePlex for a WebDAV server implementation for .NET, so that I can host a WebDAV server in my own programs. This is both a learning/research project (WebDAV + server portion) as well as a project I think I can have much fun with, both in terms of making it and using it. However, I see a need to do mocking of types here in order to unit-testing properly. For instance, I will be relying on HttpListener for the web server portion of the WebDAV server, and since this type has no interface, and is sealed, I cannot easily make mocks or stubs out of it. Unless I use something like TypeMock. So if I used TypeMock in the unit-test projects on this library, how bad would this be for potential users? The projects are made in C# 3.5 for .NET 3.5 and 4.0, and the project files was created with Visual Studio 2010 Professional. The actual class libraries you would end up referencing in your software would of course not be encumbered with anything remotely like this, only the unit-test libraries. What's your thoughts on this? As an example, I have in my old code-base, which is private, the ability to just initiate a WebDAV server with just this: var server = new WebDAVServer(); This constructs, and owns, a HttpListener instance internally, and I would like to verify through unit-tests that if I dispose of this server object, the internal listener is disposed of. If, on the other hand, I use the overload where I hand it a listener object, this object should not be disposed of. Short of exposing the internal listener object to the outside world, something I'm a bit loath to do, how can I in a good way ensure that the object was disposed of? With TypeMock I can mock away parts of this object even though it isn't accessed through interfaces. The alternative would be for me to wrap everything in wrapper classes, where I have complete control.

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  • How to tell your boss that his programming style is really bad?

    - by Roflcoptr
    I'm a student and in my spare time I'm working for a big enterprise as Java developer. The job is good, but the problem is, my boss is writing very strange code. I don't want to complain, but some issues are in my opinion really strange. For example: he doesn't know any booleans. All boolean conditions are Strings called "YesOrNo" and then in the condition he uses if (YesOrNo == "Yes") there are a lot of very strange characters in method names and variables like é õ ô or è all loops are infinite loops in the style of for(;;). Then at the end of the loop the condition is tested and if the conditions is fulfilled break; is called. I don't now if I should tell him that I think this isn't a good practice, since he is my boss and decides how and what to do. On the other hand some of this examples are really very weird. Any hints how to cope with? And is this only me who thinks that's bad style?

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  • Is it bad to be the only person supporting software you have developed?

    - by trpt4him
    My employer has a need for a web-based application to manage and share data within the department, with approximately 50-75 possible users. I feel I have the ability to write it for them. I would likely use Python/Django with a MySQL database, so it would be open source. However, I'm the only IT person in my department (our larger organization has a separate IT support staff with which I often work, but not for web development). I want to develop this application, but if I leave in 1-2 years, and someone else has to come in after me and support it, will this be seen as a bad decision? This is assuming all the obvious points -- I will write documentation, I will comment my code, and I will strive to follow good application design principles. But will that be enough? In principle, is it acceptable for one person to develop and support an entire web application? Is this a "do first, then show and ask" kind of situation, or should I be certain it will be adopted by everyone involved first?

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  • How bad would be to focus on iOS/Android development for an indie developer?

    - by kender
    After some time developing games for others I'm thinking of moving towards my own productions. My background is 10+ years of software development, with last 2 years spent on the iOS development (Objective-C and CoronaSDK). With my current experience in Corona I can quickly develop for iOS and Android systems. And this is something that I'm probably gonna do with several of the game ideas I have, at least for the prototype part. But - I'm wondering if it's not a bad idea to focus on those 2 systems only. After all there are other mobile platforms, there are PCs, Macs and Linux boxes... All of them having gamers using them. I was wondering if it wasn't a good idea to try some other SDK, giving me more flexibility when it comes to platform-independance. There's Unity3D (I think I can develop a 2D game in it though), there's MoAI from what I checked. I see a few options, not sure which one is best as I have little experience in this field (publishing own games): Stick with CoronaSDK for the whole time, release for iOS and Android platforms, screw other mobile devices and PCs, Use Corona for prototyping, then when the idea goes more into the "production" phase rewrite it in MoAI or Unity3D for more platforms support, Start with one of those 2 SDKs right now (which means the prototype phase will be delayed a bit, but after that I can jump right into real coding). Any clues here, what to do?

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  • What is logical cohesion, and why is it bad or undesirable?

    - by Matt Fenwick
    From the c2wiki page on coupling & cohesion: Cohesion (interdependency within module) strength/level names : (from worse to better, high cohesion is good) Coincidental Cohesion : (Worst) Module elements are unrelated Logical Cohesion : Elements perform similar activities as selected from outside module, i.e. by a flag that selects operation to perform (see also CommandObject). i.e. body of function is one huge if-else/switch on operation flag Temporal Cohesion : operations related only by general time performed (i.e. initialization() or FatalErrorShutdown?()) Procedural Cohesion : Elements involved in different but sequential activities, each on different data (usually could be trivially split into multiple modules along linear sequence boundaries) Communicational Cohesion : unrelated operations except need same data or input Sequential Cohesion : operations on same data in significant order; output from one function is input to next (pipeline) Informational Cohesion: a module performs a number of actions, each with its own entry point, with independent code for each action, all performed on the same data structure. Essentially an implementation of an abstract data type. i.e. define structure of sales_region_table and its operators: init_table(), update_table(), print_table() Functional Cohesion : all elements contribute to a single, well-defined task, i.e. a function that performs exactly one operation get_engine_temperature(), add_sales_tax() (emphasis mine). I don't fully understand the definition of logical cohesion. My questions are: what is logical cohesion? Why does it get such a bad rap (2nd worst kind of cohesion)?

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  • Is constantly looking for code examples a sign of a bad developer?

    - by Newly Insecure
    I am a CS student with several years of experience in C and C++, and for the last few years I've been constantly working with Java/Objective C doing app development and now I have switched to web development and am mainly focused on ruby on rails and I came to the realization that (as with app development , really) I reference other code way too much. I constantly Google functionality for lots of things I imagine I should be able to do from scratch and it's really cracked my confidence a bit. Basic fundamentals are not an issue, I hate to use this as an example but I can run through javabat in both java/python at a sprint - obviously not an accomplishment and but what I mean to say is I have a strong base for the fundamentals I think? I know what I need to use typically but reference syntax constantly. Would love some advice and input on this, as it has been holding me back pretty solidly in terms of looking for work in this field even though I'm finishing my degree. My main reason for asking is not really about employment, but more that I don't want to be the only guy at a hackathon not hammering out nonstop code and sitting there with 20 Google/github tabs open, and I have refrained from attending any due to a slight lack of confidence... Is a person a bad developer by constantly looking to code examples for moderate to complex tasks?

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  • Is looking for code examples constantly a sign of a bad developer?

    - by Newly Insecure
    I am a comp sci student with several years of experience in C and C++, and for the last few years I've been constantly working with Java/Objective C doing app dev and now I have switched to web dev and am mainly focused on ruby on rails and I came to the realization that (as with app dev, really) I reference other code wayyyy too much. I constantly google functionality for lots of things I imagine I should be able to do from scratch and it's really cracked my confidence a bit. Basic fundamentals are not an issue, I hate to use this as an example but I can run through javabat in both java/python at a sprint - obviously not an accomplishment and but what I mean to say is I have a strong base for the fundamentals I think? I know what I need to use typically but reference syntax constantly. Would love some advice and input on this, as it has been holding me back pretty solidly in terms of looking for work in this field even though I'm finishing my degree. My main reason for asking is not really about employment, but more that I don't want to be the only guy at a hackathon not hammering out nonstop code and sitting there with 20 google/github tabs open, and I have refrained from attending any due to a slight lack of confidence... Is a person a bad developer by constantly looking to code examples for moderate to complex tasks?

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  • Do you feel bad when you have to learn new things?

    - by tactoth
    New thing is not always cool. I see many people say they are very bored by doing the similar things day after day. For me it's the opposite - I'm always learning something new. During the last one and a harf year, nearly every two months I need to do lots of researches on a totally new topic: RTMP, MP4, SIP, VNC, Smooth streaming, ..., I have to read lots of specifications, download tones of open source projects to understand concepts, and turn them into my runnable code. And it was so bad! My brain has never been very sure and very familiar with anything, and when it's close to be sure and familiar, it'll have to switch to next thing. I kind of envy people who build upper level applications because they can be very focusing, and their knowledge set includes most things their job requires. Everything is quite measurable, direct and straightforward. Have you ever had the similar feeling? I'm thinking of asking my boss to assign me some other piece of work so that I work like moving forward on a broad road instead of figuring out a way in the dark, I think it'll be more relaxing, any suggestion?

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  • On installing nvidia drivers on 12.10 I get "Bad return status for module build on kernel: 3.5.0-19-generic (x86_64)"

    - by james
    New Ubuntu user - just recently made the mistake of trying a different nvidia driver. I'd managed to get the last (nvidia-current) one working through software sources a few weeks ago. The other day I tried to cross over to nvidia-experimental-310 and this produced a system error. Swapping back and forth between proprietary drivers now always causes an error and I can't get any of them to work. Installing through the terminal I get this error message every time: Building initial module for 3.5.0-19-generic Error! Bad return status for module build on kernel: 3.5.0-19-generic (x86_64) Consult /var/lib/dkms/nvidia-experimental-310/310.14/build/make.log for more information On rebooting, I end up with the crappy screen resolution and the thick black border around the screen. I use gksudo software-properties-gtk to bring up sources, where I can change back to the nouveau driver, which restores my screen. After that I can't find /var/lib/dkms/nvidia-experimental-310/310.14/build/make.log so I can't tell you what's inside. Any ideas what might be preventing the nvidia driver from installing? SOLUTION FOUND Okay - so I have a workaround. This is what has worked: Upgrade to kernel 3.7.0 as detailed here upgrade to latest version of the nvidia drivers as detailed here No idea what was happening with kernel 3.5.0-19, but this seems to be better. A little slower maybe on boot, but after days of messing around it's nice to have something that works.

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  • Video quality too bad while playing (any) videos in Intel GM965/GL960 Integrated Graphics Controller Ubuntu 12.04

    - by Sukhdev
    I have searched blogs and forums, installed several drivers, but can't find a solution that can provide equivalent video quality as that of Windows 7. Kindly help. Video quality specially color is too bad while playing with any media player. Configuration details are: Ubuntu - 12.04 Intel Corporation Mobile GM965/GL960 Integrated The results of the following commands are a) sudo lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) (rev 0c) b) find /dev -group video /dev/fb0 /dev/dri/card0 /dev/dri/controlD64 /dev/agpgart c) glxinfo | grep -i vendor server glx vendor string: SGI client glx vendor string: ATI OpenGL vendor string: Tungsten Graphics, Inc d) sudo lshw -C video *-display:0 description: VGA compatible controller product: Mobile GM965/GL960 Integrated Graphics Controller (primary) vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 0c width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:44 memory:fea00000-feafffff memory:e0000000-efffffff ioport:efe8(size=8) *-display:1 UNCLAIMED description: Display controller product: Mobile GM965/GL960 Integrated Graphics Controller (secondary) vendor: Intel Corporation physical id: 2.1 bus info: pci@0000:00:02.1 version: 0c width: 64 bits clock: 33MHz capabilities: pm bus_master cap_list configuration: latency=0 resources: memory:feb00000-febfffff I have spent days installing various drivers, and then un-installing but can't come up with a solution. Please help.

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  • ASP.NET Web Forms is bad, or what am I missing?

    - by iveqy
    Being a PHP guy myself I recently had to write a spider to an asp.net site. I was really surprised by the different approach to ajax and form-handling. For example, in the PHP sites I've worked with, a deletion of a database entry would be something like: GET delete.php?id=&confirm=yes and get a "success" back in some form (in the ajax case, probably a json reply). In this asp.net application you would instead post a form, including all inputs on the page, with a huge __VIEWSTATE and __EVENTVALIDATION. This would be more than 10 times as big as above. The reply would be the complete side again, with a footer containing some structured data for javascript to parse and display the result. Again, the whole page is sent, and then throwed away(?) since it's already displayed. Why not just send the footer with the data to parse (it's not json nor xml but a | separated list). I really can't see why you would design a system that way. Usually you've a fast client, and a somewhat fast server but a really slow connection. Why not keep the datatransfer to a minimum? Why those huge __VIEWSTATE and __EVENTVALIDATION? It seems that everything is done way to chatty and way to complicated. I really can't see the point and that usually means that I'm missing something. So please tell me, what are the reasons for this design and what benefits (and weaknesses) does it have? (Yes I know that __VIEWSTATE is used to tell what type of form-konfiguration should be sent back to the server. But WHY is this needed?) Please keep this discussion strictly technical and avoid flamewars. Update: Please excuse the somewhat rantish question. I tried to explain my view to be able to get a better answer. I am not saying that asp.net is bad, I am saying that I don't understand the meaning of those concepts. Usually that means that I've things to learn instead of the concepts beeing wrong. I appreciate the explanations about that "you don't have to do this way in asp.net", I'll read up on MVC and other .net technologies. However, there most be a reason for this site (the one I referred to) to be written the way it is. It's written by professionals for a big organisation with far more experience than what I've. Any explanation about their (possible) design choice would be welcome.

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  • How to explain bad software to non-technical people?

    - by mtutty
    In discussing software development with non-technical people (customers, business owners, project sponsors, etc.), I often resort to analogies and metaphors. It's relatively easy and effective to use a "house" or other metaphor for describing the size and complexity of new development. However, we often inherit someone else's code or data, and this approach doesn't seem to hold up as well when trying to explain why we're gutting something that already seems to work. Of course we can point to cycle time and cost to be saved in the future but this generally means nothing to business folks. I know doctors can say "just take this pill," but I'm not sure that software devs have the same authority. Ideas? EDIT: Let me add a bit to the discussion. The specific project I'm talking about has customers that don't realize (or care) about specific aspects of the system we're retiring (i.e., they think it was just fine): The system would save a NEW RECORD every time someone updated a field The system contained tables for reference data. These tables had new records added every day, even though they were duplicates of previous records. And there was no way to tie the reference data used for a particular case at the time it was closed. This is like 99% of the data in the old system. The field NAMES also have spaces, apostrophes and other inappropriate characters in them, making everything harder to work with. In addition to the incredible amount of duplicate data, they have around 1000 XLS files with data they want added to the system. Previously, they would do a spreadsheet for each case in the database, IN ADDITION TO what they typed into the database. Getting rid of this old, unneeded information and piping in the XLS data comprises about 80% of the total project effort, and was not something we could accurately predict. I'm trying to find a concrete way to describe how bad this thing was, mostly so that the customer will understand why the migration process has been so time-consuming. The actual coding was done pretty quickly and the new system works fine, but without the old data they won't be happy. Sorry to get into the weeds, but most of the answers I've seen so far are pretty basic scope/schedule/cost things. I've been doing this for 15 years, so this really is more of a reflective, philosophical question - but without some of the details it can be difficult to really appreciate the awful beauty of this problem.

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  • Google TV Gets Bad Reception. Can Media Center Pull in the Signal?

    - by andrewbrust
    The news hit Monday morning that Google has decided to delay the release of its Google TV platform, and has asked its OEMs to delay any products that embed the software.  Coming just about two weeks prior to the 2011 Consumer Electronics Show (CES), Google’s timing is about the worst imaginable.  CES is where the platform should have had its coming out party, especially given all the anticipation that has built up since its initial announcement came 7 months ago. At last year’s CES, it seemed every consumer electronics company had fashioned its own software stack for Internet-based video programming and applications/widgets on its TVs, optical disc players and set top boxes.  In one case, I even saw two platforms on a single TV set (one provided by Yahoo and the other one native to the TV set). The whole point of Google TV was to solve this problem and offer a standard, embeddable platform.  But that won’t be happening, at least not for a while.  Google seems unable to get it together, and more proprietary approaches, like Apple TV, don’t seem to be setting the world of TV-Internet convergence on fire, either. It seems to me, that when it comes to building a “TV operating system,” Windows Media Center is still the best of a bad bunch.  But it won’t stay so for much longer without some changes.  Will Redmond pick up the ball that Google has fumbled?  I’m skeptical, but hopeful.  Regardless, here are some steps that could help Microsoft make the most of Google’s faux pas: Introduce a new Media Center version that uses XBox 360, rather than Windows 7 (or 8), as the platform.  TV platforms should be appliance-like, not PC-like.  Combine that notion with the runaway sales numbers for Xbox 360 Kinect, and the mass appeal it has delivered for Xbox, and the switch form Windows makes even more sense. As I have pointed out before, Microsoft’s Xbox implementation of its Mediaroom platform (announced and demoed at last year’s CES) gets Redmond 80% of the way toward this goal.  Nothing stops Microsoft from going the other 20%, other than its own apathy, which I hope has dissipated. Reverse the decision to remove Drive Extender technology from Windows Home Server (WHS), and create deep integration between WHS and Media Center.  I have suggested this previously as well, but the recent announcement that Drive Extender would be dropped from WHS 2.0 creates the need for me to a) join the chorus of people urging Microsoft to reconsider and b) reiterate the importance of Media Center-WHS integration in the context of a Google compete scenario. Enable Windows Phone 7 (WP7) as a Media Center client.  This would tighten the integration loop already established between WP7, Xbox and Zune.  But it would also counter Echostar/DISH Network/Sling Media, strike a blow against Google/Android (and even Apple/iOS) and could be the final strike against TiVO. Bring the WP7 user interface to Media Center and Kinect-enable it.  This would further the integration discussed above and would be appropriate recognition of WP7’s Metro UI having been built on the heritage of the original Media Center itself.  And being able to run your DVR even if you can’t find the remote (or can’t see its buttons in the dark) could be a nifty gimmick. Microsoft can do this but its consumer-oriented organization, responsible for Xbox, Zune and WP7, has to take the reins here, or none of this will likely work.  There’s a significant chance that won’t happen, but I won’t let that stop me from hoping that it does and insisting that it must.  Honestly, this fight is Microsoft’s to lose.

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  • If the model is validating the data, shouldn't it throw exceptions on bad input?

    - by Carlos Campderrós
    Reading this SO question it seems that throwing exceptions for validating user input is frowned upon. But who should validate this data? In my applications, all validations are done in the business layer, because only the class itself really knows which values are valid for each one of its properties. If I were to copy the rules for validating a property to the controller, it is possible that the validation rules change and now there are two places where the modification should be made. Is my premise that validation should be done on the business layer wrong? What I do So my code usually ends up like this: <?php class Person { private $name; private $age; public function setName($n) { $n = trim($n); if (mb_strlen($n) == 0) { throw new ValidationException("Name cannot be empty"); } $this->name = $n; } public function setAge($a) { if (!is_int($a)) { if (!ctype_digit(trim($a))) { throw new ValidationException("Age $a is not valid"); } $a = (int)$a; } if ($a < 0 || $a > 150) { throw new ValidationException("Age $a is out of bounds"); } $this->age = $a; } // other getters, setters and methods } In the controller, I just pass the input data to the model, and catch thrown exceptions to show the error(s) to the user: <?php $person = new Person(); $errors = array(); // global try for all exceptions other than ValidationException try { // validation and process (if everything ok) try { $person->setAge($_POST['age']); } catch (ValidationException $e) { $errors['age'] = $e->getMessage(); } try { $person->setName($_POST['name']); } catch (ValidationException $e) { $errors['name'] = $e->getMessage(); } ... } catch (Exception $e) { // log the error, send 500 internal server error to the client // and finish the request } if (count($errors) == 0) { // process } else { showErrorsToUser($errors); } Is this a bad methodology? Alternate method Should maybe I create methods for isValidAge($a) that return true/false and then call them from the controller? <?php class Person { private $name; private $age; public function setName($n) { $n = trim($n); if ($this->isValidName($n)) { $this->name = $n; } else { throw new Exception("Invalid name"); } } public function setAge($a) { if ($this->isValidAge($a)) { $this->age = $a; } else { throw new Exception("Invalid age"); } } public function isValidName($n) { $n = trim($n); if (mb_strlen($n) == 0) { return false; } return true; } public function isValidAge($a) { if (!is_int($a)) { if (!ctype_digit(trim($a))) { return false; } $a = (int)$a; } if ($a < 0 || $a > 150) { return false; } return true; } // other getters, setters and methods } And the controller will be basically the same, just instead of try/catch there are now if/else: <?php $person = new Person(); $errors = array(); if ($person->isValidAge($age)) { $person->setAge($age); } catch (Exception $e) { $errors['age'] = "Invalid age"; } if ($person->isValidName($name)) { $person->setName($name); } catch (Exception $e) { $errors['name'] = "Invalid name"; } ... if (count($errors) == 0) { // process } else { showErrorsToUser($errors); } So, what should I do? I'm pretty happy with my original method, and my colleagues to whom I have showed it in general have liked it. Despite this, should I change to the alternate method? Or am I doing this terribly wrong and I should look for another way?

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  • What's the fastest way to check if a word from one string is in another string?

    - by Mike Trpcic
    I have a string of words; let's call them bad: bad = "foo bar baz" I can keep this string as a whitespace separated string, or as a list: bad = bad.split(" "); If I have another string, like so: str = "This is my first foo string" What's the fasted way to check if any word from the bad string is within my comparison string, and what's the fastest way to remove said word if it's found? #Find if a word is there bad.split(" ").each do |word| found = str.include?(word) end #Remove the word bad.split(" ").each do |word| str.gsub!(/#{word}/, "") end

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  • Why is it a bad practice to call System.gc?

    - by zneak
    After answering to a question about how to force-free objects in Java (the guy was clearing a 1.5GB HashMap) with System.gc(), I've been told it's a bad practice to call System.gc() manually, but the comments seemed mitigated about it. So much that no one dared to upvote it, nor downvote it. I've been told there it's a bad practice, but then I've also been told garbage collector runs don't systematically stop the world anymore, and that it could also be only seen as a hint, so I'm kind of at loss. I do understand that usually the JVM knows better than you when it needs to reclaim memory. I also understand that worrying about a few kilobytes of data is silly. And I also understand that even megabytes of data isn't what it was a few years back. But still, 1.5 gigabyte? And you know there's like 1.5 GB of data hanging around in memory; it's not like it's a shot in the dark. Is System.gc() systematically bad, or is there some point at which it becomes okay? So the question is actually double: Why is it or not a bad practice to call System.gc()? Is it really a hint under certain implementations, or is it always a full collection cycle? Are there really garbage collector implementations that can do their work without stopping the world? Please shed some light over the various assertions people have made. Where's the threshold? Is it never a good idea to call System.gc(), or are there times when it's acceptable? If any, what are those times?

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